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krok68 [10]
3 years ago
8

Which travels fastest through empty space? A. electromechanical waves B. transverse waves C. longitudinal waves D. electromagnet

ic waves
Physics
1 answer:
Nady [450]3 years ago
7 0
The answer is B hope it helps:)
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Before a rifle is fired, the linear momentum of the bullet-rifle system is zero.
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II. Linear momentum of the system is zero.

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Thus, the total momentum would also be equivalent to zero after the collision.

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A 2.0-kilogram ball traveling north at 4.0 meters per second collides head on with a 1.0-kilogram ball traveling south at 8.0 me
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We know the momentum after the collision MUST be equal to the momentum BEFORE the collision.  

Momentum is a VECTOR quantity having both magnitude and direction.  The first ball has momentum P =m*v = 2*4 = 8 at 90degrees.  The second ball has momentum P = 1*8 = 8 at -90 or 270 degrees.  They sum to zero when you perform vector addition.

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  1. One common use of a convex mirror is as shaving mirror.
  2. One common use of convex mirror is as rear-view mirrors in automobiles vehicles.

<h3>What is a concave mirror?</h3>

A concave mirror is also referred to as a converging mirror and it can be defined as a type of mirror that is designed and developed with a reflective surface that is typically curved inward and away from the source of light.

Basically, one common use of a convex mirror include the following:

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Basically, one common use of convex mirror is as rear-view mirrors in automobiles vehicles.

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